The Chandogya Upanishad is a Sanskrit text embedded in the Chandogya Brahmana of the Sama Veda of Hinduism. It is one of the oldest Upanishads. It lists as number 9 in the Muktika canon of 108 Upanishads.
The Upanishad belongs to the Tandya school... Wikipedia
Chapters: Eight
Date: 8th to 6th century BCE
Devanagari: छान्दोग्य
IAST: Chāndogya
Linked Veda: Samaveda
Philosophy: Oneness of the Atman
Popular verse: Tat tvam asi